Base | Representation |
---|---|
bin | 1111100100100… |
… | …00110101000001 |
3 | 100002210000100101 |
4 | 13302100311001 |
5 | 231414213031 |
6 | 20543322401 |
7 | 3144136351 |
oct | 762206501 |
9 | 302700311 |
10 | 130616641 |
11 | 67803241 |
12 | 378b0401 |
13 | 210a336c |
14 | 134c0b61 |
15 | b701361 |
hex | 7c90d41 |
130616641 has 4 divisors (see below), whose sum is σ = 132456384. Its totient is φ = 128776900.
The previous prime is 130616639. The next prime is 130616653. The reversal of 130616641 is 146616031.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146616031 = 113 ⋅1297487.
It is a cyclic number.
It is not a de Polignac number, because 130616641 - 21 = 130616639 is a prime.
It is a super-2 number, since 2×1306166412 = 34121413812245762, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130616041) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919765 + ... + 919906.
It is an arithmetic number, because the mean of its divisors is an integer number (33114096).
Almost surely, 2130616641 is an apocalyptic number.
It is an amenable number.
130616641 is a deficient number, since it is larger than the sum of its proper divisors (1839743).
130616641 is an equidigital number, since it uses as much as digits as its factorization.
130616641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1839742.
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 130616641 is about 11428.7637564174. The cubic root of 130616641 is about 507.3794075543.
The spelling of 130616641 in words is "one hundred thirty million, six hundred sixteen thousand, six hundred forty-one".
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